Improvement in the construction of chairs



- TED STATES To all 'whom Iit may concern: y Be it known that I, DANIEL E. TEAL, of -New Lisbon, in the county of Otsego and in the State of New York, have invented certain new and useful Improvements in Chairs; and do hereby declare that the'following is a full, clear, and exact description thereof, reference beinglladv to the accompanying drawing, making a part of this specication, in which-.- y i i Figure l is a side elevation of a swivel-chair containing my improvements. Fig. 2. is a'like` view of achairJseat, showing another means for connecting it to :the screw,A and Fig. 3 is a plan` view of the lowerfside of the same. y `Letters of like n ameand kindrefer tolike parts in each ofthe Iigures. l My invention is an improvement in `swivelchairs; and it, consists, principally, inthe spider secured toor upon'the` upper end of the `supporting screw or swivel, and upon the lower side of the seat, theside arms of which 1 are caused to act as pivotal springs for said seat, as is hereinaftershown. It also consists in the means employed for connecting together the upper ends of the legs of the stool, and furnishing a support for thenut containing the swivel-screw, asis hereinafter shown. 'l In1 theannexed drawingA and A represent the legs ofthe stool, connected together near their centers, lengthwise, by means o f trans'- verse intersecting rounds Band at their upper ends by means of a metalspider, C, which consists of four armssecured at their inner ends to a nut prepared for the reception of the pivotal screw, and, from thence extending radially, outw`ard,`i are each provided at `their outer ends with a vertical socket, D, for the reception of the upper ends of said legs, the latter of which are secured within said sock-V ets by means of screws d, passing vertically downward into the wood, and having beneath their heads washersof sufficient size to extend 1 beyond said wood,` and embrace the upper ends of themetal. Secured to or upon the upper end of thescrew E is a metal spider, F, having four arms, which extend radially out- CASE B.

E. TEAL, OF NEW LISBON, NEW YORK.

IMPRVEMENT IN THE CONSTRUCTION 0F CHAIRS.

Specication forming part of Letters Patent No. 105,516, dated July 19, 1870.

ward from the center to or near the outer edge of the seat G. The side arms f extend slightly upward from the center, and are each connected to the seat by meausof aspiral spring, H, the opposite ends of which are secured within said seat and the outer ends of `said arm, so as to form a pivotal joint between said seat and the spider. The front arm f extends upward, so as to bear 'against and support the frontedge of the seat when the latter is in a horizontal position, while the height of the rear arm f is so adjusted as to permit said stool to be tilted or rocked to the rear as far as safety will permit, when it rests upon and is supported by means ofthe rear end of said arm.

` In Fig. 2 is shown a modification of the spider, in which the side arms j' are formed of spring-steel, and, have a suicient :depth to enable them to support the required weight,

while their thickness is such as to give them the necessary twisting or lateral spring. As thus constructed, said arms are secured at their outer ends directly to or upon the bottomof the-seat, and serve not only as a support therefor, but also as a pivotal joint between the same and the spider.

Having thus fully set forth the nature and merits of my invention, what I claim as new 1sl. The su1')porting-spider F, constructed as described, with side spring-arms f, and connected to the screw E and seat G, substantially as and for the purpose shown.

2. The spider G, provided. with the sockets D, for connecting together, and in combina tion with, the legs A, substantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this 25th'day of June, 1,870.

DANIEL E. 'IEAL.v 

